Congrats on going through with the adoption process! I am curious about one thing, though: do they ask questions about your weight (and your husband's)? My dh told me a while ago that when you're going through a Korean adoption, one of the criteria they use for screening parents is weight.
And I think your decision to go with OPT is good. Whatever will help you stick with a program over a lengthy amount of time is a big plus, and since you love running, and that is compatible w/OPT, it'll be a huge boost for you.